Lauren Jefferis MD
About this NPIWhat this record shows.
NPI 1346354776 is registered to Lauren Jefferis MD, a Internal Medicine practising at 150 Valpreda Rd in San Marcos, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Lauren Jefferis MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Lauren Jefferis MD accepts. To confirm in-network status with your specific health plan, contact Lauren Jefferis MD directly at (760) 736-6700.
Frequently asked
Yes. NPI 1346354776 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (760) 736-6700.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Lauren Jefferis MD is a Type-1 individual NPI.